1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_
#define UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_
#include "base/metrics/histogram_functions.h"
// Check valid timing for start and end latency components.
#define CONFIRM_EVENT_TIMES_EXIST(start, end) \
DCHECK(!start.is_null()); \
DCHECK(!end.is_null());
// Event latency that is mostly under 5 seconds. We should only use 100 buckets
// when needed.
#define UMA_HISTOGRAM_INPUT_LATENCY_5_SECONDS_MAX_MICROSECONDS(name, start, \
end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::UmaHistogramCustomCounts( \
name, std::max(static_cast<int64_t>(0), (end - start).InMicroseconds()), \
1, 5000000, 100);
// Deprecated, use UMA_HISTOGRAM_INPUT_LATENCY_CUSTOM_MICROSECONDS instead.
// Event latency that is mostly under 1 second. We should only use 100 buckets
// when needed.
#define UMA_HISTOGRAM_INPUT_LATENCY_HIGH_RESOLUTION_MICROSECONDS(name, start, \
end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::UmaHistogramCustomCounts( \
name, std::max(static_cast<int64_t>(0), (end - start).InMicroseconds()), \
1, 1000000, 100);
// Event latency that is mostly under 100ms. We should only use 100 buckets
// when needed. This drops reports on clients with low-resolution clocks.
#define UMA_HISTOGRAM_INPUT_LATENCY_CUSTOM_MICROSECONDS(name, start, end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::TimeDelta frame_difference = end - start; \
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES( \
name, frame_difference, base::TimeDelta::FromMicroseconds(1), \
base::TimeDelta::FromMilliseconds(100), 100);
// Event latency that is mostly under 1 second. We should only use 100 buckets
// when needed. This drops reports on clients with low-resolution clocks.
#define UMA_HISTOGRAM_INPUT_LATENCY_CUSTOM_1_SECOND_MAX_MICROSECONDS( \
name, start, end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::TimeDelta frame_difference = end - start; \
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES( \
name, frame_difference, base::TimeDelta::FromMicroseconds(1), \
base::TimeDelta::FromMilliseconds(1000), 100);
#define UMA_HISTOGRAM_INPUT_LATENCY_MILLISECONDS(name, start, end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::UmaHistogramCustomCounts( \
name, std::max(static_cast<int64_t>(0), (end - start).InMilliseconds()), \
1, 1000, 50);
// Long touch/wheel scroll latency component that is mostly under 200ms.
#define UMA_HISTOGRAM_SCROLL_LATENCY_LONG_2(name, start, end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::Histogram::FactoryGet(name, 1000, 200000, 50, \
base::HistogramBase::kUmaTargetedHistogramFlag) \
->Add( \
std::max(static_cast<int64_t>(0), (end - start).InMicroseconds()));
// Short touch/wheel scroll latency component that is mostly under 50ms.
#define UMA_HISTOGRAM_SCROLL_LATENCY_SHORT_2(name, start, end) \
CONFIRM_EVENT_TIMES_EXIST(start, end) \
base::Histogram::FactoryGet(name, 1, 50000, 50, \
base::HistogramBase::kUmaTargetedHistogramFlag) \
->Add( \
std::max(static_cast<int64_t>(0), (end - start).InMicroseconds()));
#endif // UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_
|
